Combined typewriting and computing machine



F. L. MORGAN.

COMBINED TYPEWRITING AND COMPUTING MA CHINE.

APPLICATION FILED OCT- 3. I91 I.

Patented Oct. 31, 1922 3 sauna-swim 1.

A T TO R N EY WITNESSES: &

F. L. MORGAN.

COMBINED TYPEWRITING AND CQMPUTlNG MACHINE. APPLICATION FILED OCT. 3,19ll.

1,433,737. Patented Oct. 31, 1922.

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:idm W ATTORNEY F. L. MORGAN. COMBINED TYPEWRITING AND COMPUTING MACHINE- APPLICATION FILED OC I'. 3,191].

Patented Oct. 31, 1922.

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ATTORZEY.

Patented Oct. 31 1922.

UNITED STATES.

FRANK LEWIS uonosn, OF WASHINGTON, ms'rnzc'ror OOLUMBIA, sssmnon fro JOHN T. UNDEBWOOD, OF BROOKLYN, NEW YORK.

COMBINED IYPEWRITING AND COMPUTING MACHINE.

Applloatloniiled October a, 1011. 'Berhil no. 052,542.

Be it known that I, Fnn'n L. Monosx, a citizen of the United States, residing in city of Washington, Dist-riot of Columbia, have inrrnlrd certain new and useful Improvemrnts in Combined '.I 'pe\rriting'and CoinputingMiu-hines, of which the following Is a speriiirat-ion.

My invention relates to romputm" muchines combined with ty )ewriting nnu hin es. More specifically. it relatesto a lock for oom wlling the mechun ism to perform a giren kind of'work for whirh it is set while writing 11 certainnumhor or numbers. und means for releasing said lock to. return the locked mechanism to perform its normal operation. I' also prorirlou conspicuous tell tale to shou' how the mechanism is set.

I show u hrtoh adapted to set the computing merlul-nism either -for subtraction ornd- (lition h'ut normally returning it to :uldltion. and a lock operated by the casing carrying the recording vwheels; This lock can he setwhilr writing a given numheiyto hold the nu-ohnnism so that it will perform subtraction: but immediately theni'unher is written. the look is released. and the mechanism returns to position'so that. it will add, In this way, it is possible for the operator to general work, is in addition. sl'ibtriicti'on be ing generally used only form few moments. nnd. my-devioe, as has been pointed-out, automuticlilly returns the com puting meohanism to-tlie normal. operation.

Other features and advantages will here inafter appear.

In the accompanying drawings,

'Fi' we 1 represents my attachment as up? plieii to on adding machine attached to a typewriter. showing only a portion of tho. typewriter.

igure 2 is apexspectiv view of somoof' run the machine with less attention, because the normal operation of a typewriter. n

:ivntercarria 2 makes its" letterfeo 'moyeme'nts, w ierebythe dial wheels are typewriter carriage is operative on Figure 6 shows the latch of the lock between its two operative positions.

Figure 7 shows the gearing set for subtraction.

t Figure 8 shows the'gearing. set for addiion.

lfigure 9 isa ,view of the bottom of the easing curryin s the (1101s..

Fiquin 10 illustrates mv attachment as applied to on adding machine attached to u Remington fronbstrike typewriter.

In the drmringsgl-is the main frame of the typewriter, on which runs a carriage 2 fronrwhich is so ported a bar 8 carryin a rack bar. 4, on w hell is sup )orted a casing carrying the ,diuls fi of wlintiis commeri-iall vknown as a Wahl computing ma chine. This casin is ad'ustable along the rack 4 by means 0 11 Intel 7. anclis held at the bottom on a ba l- B.

On the main frame of the typewriter, is

carried u driving mechanism for said dials, consisting of a master wheel 9 on ashaftlO which is. turned by a segment wheel 11. Said segment wheel is rotated in the usual way, Figure to carry 6 res'from the numeral keys-oi the typewriter to the com puting mechanism.

While performin addition,. the key- 3 driven segment 11, igure8,,meshes with u PlIliOIl. 12.. which is mounted upon and turns the master. wheel shaft 10. Computation wheels 44, in the casing fi, are successively engaged lay-the master-wheel 9 as the tapeingtnrneds'ue'cessivel In order to perl orm subtra ctionya. handle 19 is shifted toward the letter to the Figure 7 position, to disconnect said ma'ster wheelpinion 12- from the key-operated segment 11, and simultaneously connect 11 to' 12- by means of a hsmk-geuringildevice; so

tlmt pinion 12 will rotate in t direction at the key. strokes. Theackgearing device comprises inions 15 and 16.

Pinion 15 iS-ulWtLyS in mes with said pinion e op lijosite. r

12, but turns idly during'the adding opera-' tion; and pinion ili'is rigidly-connected to 15.11 means ofiirsleeve 14.,nncl also turns id during-the hdditionopemtion'. But it wil be seen thotjnhen 'pinions iii-nod 16 ",nreshitted axially to the-Figure! position, the pinion 16 is brought into meshzwith the. key-driven segment11, a'nfd by means of the ee ment 11, all

pinion rotates the master wheel pinion 12, so thatthe master wheel 9 is turned in abnormal or subtraction direction.

For the purpose of subtraction, therefore, the handle 19 1s connected to shift the pinion 12 out of cage ment with the key driven also to shift the inion 1G inzo mesh with said segment 11; t e pinion 15 Being also shifted with the pinion 12. Said handle.19 is fixed upon an arbor 17, which carries the pinions 15 and 16; the

' .latter having the usual pin-and-groove. consimultaneously; the pinion 12 being splined to the master-wheel shaft 10 to .while turning freely thereon.

nection to the erhor so as to shift therewith, A yoke 13 connects the members 15,14, 16 with the hub of the pinion 12, so asto shift the latter and'hus then pulled the handle either to the left or right, to set the machine for either subtracting or adding, and has released the handle 19; and the toothllu of arm 1'8, by

means of said a ring 18 has been caused to catch in the no ch to maintain the machine in either adding or subtractingcondition.'

In order to avoid. mistakesoecurring hy reason of the operator forgetting to metorr thermachine to addition after It has been used for subtraction, I provide a spring: 28, which is in the nature 0 a returning spring, and tends always to return the arbor l7 and the back-gearing device to normal adding osit-ion, seen in Figure 8; until arrange or such return to be ucco'rnplialuiul auto matically after the completion of: the operation of subtracting a number. When the at 22, the latter also having an arm 21, which handle 19 is shifted to the left, the spring 28 is com Jreesed so as to l'tttlllll (ll parts: but 'sahlr leturn is automatically delayed or prevented until the cmnplutiou'of the writof a number. I )rovide a normally iue entire latch. 37, w lich is dcprvs-iihlc by means of a bar 39 provided upon the under sur'face of the casin '5 of the totalizer or adding head. As the typewlzitercarriu 0. travels and the adding head a'lprouchce t 0 position for wmputation. the latch 37 is dopwesod by said her 39. This lat-uh may be m the -form of a bend made on tho 'uwior end of a y crtioal plate 25 and rounded u at both corners 38 to give a. cam effort. Upon the plate-2B is an. car 25. having a slot 24. which engagnm au arm2il upon a rock shaft acao? has a pinnnd-elot connection 20, Figures 5 and'ti', with the aforesaid reversing arm 18. The operator may lift. the handle 19 against the tension of spriu 18, eulilciently to release it from the outer 32, and may then push the handle towards the left, can rying with it the arm 18, arbor '17, and back gears 15 and 16 to the Figure 7 position; whereupon-the operator may drop catch or tooth 30 of arm 18 into the subtraction notch 31 said spring 18" opcratin to hold it in the notch. The little play 0 the ,arm 18, which is necessary-for enterlng and leaving the notches, is )rovicled by the pin-end slot connection at (l. The arms 18 and 21 are held by the heads of the pivotat 20 so'that arbor l7 and rock-shaft 22 more endwiac together. When the operator sets the arm 18 into the notch til, it does not quite touch the bottom of the notch, as seen at Figure 6, because the pin 20 prevents the arm 18 from drcppin r so far; but the spring 18 holds down t m arm 18.

During the writing audfiuhtraetiun of the number the totulizor casing cul'rlvs down (Figure 4) and holds down the latch device 37 so that the parts remain inaubtractiou position. The depression of arm 21 by, moansol the part. 3?, permits the sprin I8" tocarry the arm 18 a little farther into the notch, as at Figure-4", After tlu' complation of the writing of the lmmlauz lhc tutalizcr travels past the latch 37 and relcasrn the same. and u uprina H. which is mnsionrd by the down strnluofthe latch plate 25. (one end of said spring ruum-rtrd to i pin 35 projcrting from latch plan- 25, and the othm-rnd of said Spl'lllfl.t'ulllltvlml to a pin 36. which projects from a grmn-d guide or ruidr plate lixrd upon the l'rauwwork oft la tylwwritiug umrhim'. and a mu which the platr 2:1 slides a l and dowul llfls the latch plate 25. (mgr-tau with the arm 23, thus rocking the shaft 22 and causing arm 21 to strike up the arm 18 so far that tooth 30 of tho lullrr is carried out of the afuhlrar- .tiuu notch 31. \\'llt'l'lll mu tluspring 2H (which is rolled ul'uulu [he rm'k shaft 22 and rumprraerd la-lwrcu a rullar 2? on said rock shaft and a part of Llafrauu-work') ffllfl the rock i-lhal'l. 22 cudwie'c the slot 24 being long enough tupcrmitl-lllH um'vr meat), and curl-lea the arm 18. arbor l? and bark gears 15 and Ill. togrtluzr with the ill!- ion 12 over tdtlle addition position at "igure 8. Upon the return uf-tllc carriage hr begin a new lino the casing 5 dept-camel the latch 37 idly, but the latter rrturue after the paasamruf the carriage. -'lhe a 'lphcatiml of my aliarluuoat to a: front-strike llemiuglxm typcwrilA-r-is shown In Figure 10, in which the uum'crul'lccyaand alphabet keys are indioatml at and 46 rcepeotivcly, ear-h kov controlling, through its lever 47, link 48, hell crank 4-9 and link 2 50, a. typo-bar 51, bearing the type 52. The and an arm adapted to be depressed by the depression '01 a. key causes its type 52 to casin to hold said second spring inoperative. strike the laten 53. The operation of the 3. n a combined typewritingand comlreylever e ects also the release of the typeputing machine, the combination of' a carwriter-carriage escnpement throu h the adriagecarrying a casin recording m'echa- 70 jnstable screw 54, universal. bar 55, ell crank nism in the casing, mez-ianism on the main 56, link 57, bell crank 58, dog 59, ratchcts 60, frame for driving said recording mechanism, and the pinion 61,1nesh1ng with the rack 62 a ear for reveising said drivin mechanism, fixed to the typewriter carriage 2. Each of a iandle shifting said gear, a a aft oarryin' 10 the numeral he s is connectedto the segan arm pivoted to saidhandle,aspring-tem ment wheel 11 t irough the link 63, plate 64 ing to move said shaft to carry said gear to 'pin-andslot connection 65, cam arm 66, and a given position, and an arm rotating said extension 6? on the actuating lever 68; the shaft to depress said handle into notches several actuating lovers 68 are rigidly adapted to latch it.

15 mounted upon the rock shaitGQ which ear- 4. In a combined typ'ewriting and computs0 rice the segment wheel 11 heretofore deing machine, the combination of a carriage scribed. Connections similar to these are carrying a'casing, recordim, meclmnismin found in the Wahl Patents #393,71 an the casing, mechanism on the mainframe for 893,719, dated Jul 21, 1908. driving said rerording mechanism, a gear for 20. 'ln'the casing 2 of the drive mechanism, reverslng said driving mechanism, a handle is provided a window 510, through which the shiftin said gear, a shaft carrying an arm operator can see a tell-tale 41, carried on pivote to said handle, aspring tending to, shaft 22, show ng at a glance what operationmore said shaft to carry said ear to a g ven the oomputin ,mechanism is set for. F or position, an arm rotating smd'shaft to' de- 26 this purpose,t etell-tale 41 is provided with press said handle into notchos'adap'ted to a ortion 42 colored, black, which will be latch it, a projection embracing said arm, a visible when the computing mechanism is look operating arm to move said first arm. set foraddition; and a portion 43 coloredand a spring tending to move said operating rod, which will be'visible whenthecomputarm. 30 in mechanismis set forsn'btraction. 5. in a combined typewriting and com- 05 t will be seen that my invention is not puting machine, the combination of a carlimited to a mere adding and subtracting riage. carrying a. casing, eompntin mechmechanism, or to the type of computing deunis-m in the casin a casing on t re main rice shown, but can be up died to other maframe, driving men ianism in the second cas- 35 chines which are adapte to be converted ing (co-operating with the mechanism in the 1-00 to perform more than one kind of work, one first casing, means for converting one'of said of which it is desired to do only temporarily. mechanisms, nutolnntic means tending to Variations may be resorted to within the brings-aid ulnvortiblc mechanism to 'rscope of the intention, and portions of the form a given operation, an arm move by imfirovements may-be used without others. the approach of the casings, a shaitturned aving thus described my .inrention, I by said arm against the action'of a spring,

claim: a latch held normally 0 an by said spring 1. In a combined typewriting and compntand adapted to be'closer by the movement ing machine, the combination of a carriage oi. said arm, and a. shaft controlled by said 46 carrying a casing, recording mechanism m -la'teh' to movotl1e mmvei'tingrnenns:

the casing, mechanism on the main frame 6.1a a combined typewrlting andv comfor driving said recording mechanism, means pnting machine, the cmnhinntion of means for automatically converting said driving for settin said computing mechanism to mechanism, a latch'holding said driving add or subtract, a casing cdnspicuouslyset 5o mechanism to perform agiven kind of work, in front of the machine containing part of means for automatically releasing-said latuh, said 'mmzlnmis'm, a window in sand casing, and a movable arm on the main frame and a tell-tale .in each. window to show how ade ated to bear against said casing to hold the mechanism is sai latch operative while said recording 7. The mmbination of a' key-controlled 55 mechanism engages the driving mechanism. drive whc'el, n master-wheel 'shaft to be 2. In a combined typewriting and comdriven thereby, computing wheels operable r puting machine, the combination. of a rersaid master-wheel, a slidable ear on saidringe carrying ,a. casin recording mechaaft adapted to mesh with said rive wheel, nism in the casing, mec anism on the main in slidabIe shaftoarrying'said'slidablej gear I to frame for driving'said recording mechanism, with it and also two gear whools'fixed one a; gear for reve'rsing'said driving mechanism, sleeve on itself, one meshing with sai'dslid-' a spring for normally olding said reversing able 'enr, andone adapted to} mesh with. gear noperative, alatch for locking said resaid rive wheel a. li'amlle'moving'said slid- "versi-ng gear inoperative or inoperative poable shaft, notches to hold said handle, a

-giti0n, a spring tending to release said latch, spring normally palling'haid, handle above -a. .catch for holding the sbiftab one notch, a second spring holding said handle out of said notches, and an arm to depress said arm into a notch. 8. The combination of a master element, a totalizer element, a carriage connected to one-of said elements, a device manually operable for shifting the mechanism from addition condition to sabtr'actin r condition, ii, device in subtraction position, a spring tending .to releases-aid catch, means dependent upon the. carriage for restraining sand spring, said spring being released by the movement of tie carriage at the completion of the subtraction tlpt l'tltltllla-lllltl a spring normally icstrained by said catch andoperating n on the release ofsaid catch to restore the shiftable device to addition" position.

9. The combination of a typewriter curriage, a totaliner, a master wheel. a keycoatrolled driver connected to said master wheel. hack gearing between the driver and the master wheel, a shiftable device to operate said back gearing. a spring for returning said shiftable. device. a latch set or contm ledby. the carriage for preventing the return of said shiftable device bv said spring, and a spring to return said latch after the movement of the carriage. and permit the first sprin r to return the shiftable device and le -set tie machine t'or addition.

Ill. In a combined t- 'pea'riting and computing machine. the combination of a |novabhcurriage. a computing nn-clianism morable thereby. a reversible master wheel for actuating said computing mechanism. a

, handle.

switch handlefor l'eversi||g the direction oliaaid master wheel, and a ram nu-mla-r coin- )riaiug a lwi'itplate, adapted to latinnt'tl by tin carriage to depress said switch ll. The combination of a mendier having a tooth it" to raga 'e suhtria-tiou. notch 32. a, handhcoma-rim to said tooth member. a hack-gearing device operated by said handlc. a mantel: wheel controlled by said lunch-gearing device. computing wheels operated by said master wheel. a spring tending to return the lun'legearing dcvn-evto normal addition positioln a latch nicclmnisln ai'ltt'nnatieally operated at the computing opcratiou and automatically released at the inclusion of the computing -operaliou whereby said a wing returns the parts to position for. lttlt itinn. a carriage, a part on said carriage .l'or setting said latch mechanism, said back-gearing device being shiftable by said handle after the setting of said latch mechanism, and a tooth llltllll1tl having an indeinmdentspring for holding it in the. auotraotion notch. I

12. The mmbiuation of a member ha ring a handle oonnc a tooth 30 to engage aphtractiou notch-32.

back-gen ring a 'liy said handle,-

'fgearmg device being shiftabl'e by said iandle after the setting of said latch mechanism, and a tooth member having an independent spring for holding it in the subtraction notch, a lost motion construction being provided between the latch mechanism and the catch 30.

[3. In a combined typewriting and computing machine, the combination of means for settin said computing mechanism to add or so itract. a casing conspicuously set in front of the machine containing part of said mechanism, a windowin said casing 11 tell-talc in such window to show how the mechanism is set. and neans extending outside of said casing to operate said setting means.

14. In llvttilllplltlng machine, the combination of a register. an actuator. a traveling carriage for brin ing one denomination after another under tie control of the actuator. means for imuiaally setting the mechanism to change the character of the arithmetical operation, a device for automatically returniug to initial position the mechanism so set, means for holding said return device against action, a device fnj"ltllitllljtltitlllly releasing said return device after the register has passed the computing zone. and means on the. carriage for-holding said release device against action during thepassage of thc register tlmmgh the computing zone.

If). in a computing machine, the combina tion of a re 'ister. an actuator, a traveling J carriage for win 'ing one. denominati n after another under tie control of the actuator. means for manually setting the mechanism to change the character of the arithmetical ()l'ltltliltlll, a device for aittoniaticallv returningtn initial iosition themechanism so set. meansfor holding said return device againsta'ction. a device for utomatically releasing said irtnrn device. after the register has? passed the computing zone. meanson the carriage for holding said .re'le'ase. device 16. -In a computing machine, the rombination of a w iater. an actuator,.a traveling carriagetor ringing one denomination after in i another under the control of the actuator, the register being adjustable with relation to the travel of the carriage, means for manually setting the mechanism to change the character of the arithmetical operation, a device for automatically mturning to initial )(Ifllllml the mechanism so set, means for holding sairl'mturn (lei-ice against action, a device for automatically-rclensing said return device after the register has passed the com mting. zone, and menus on the carriage for holding said release device against action during the passage of the register through the computing zone.

17. in a computing machine. the combination of a re 'ister; anactuator. a. traveling carriage for )r nmng onc denomination after I another under the control of the actuator, means for manually setting the mechanism to change the character of the arithmetical operation 'from addition to subtraction. a

.(lm'icr for automatically retaining: to initial position the mechanism so set, means for iolding suulrcturn device against action. a

rlcvicc for nnton'iutically releasing said re-- turn device after the register has passed the computing zonc. means on the carriage for holding said release device against action during the package of the register through the computing zone, andmeane whereby the mechanism may be manually set to change the clm ractcr' of the arithmetical operation. from addition to subtraction and vice versa while the register is in the com uting zone 18. In a computing machine, t h tion oi a register, an actuator, a. traveling carriage for bringing one denomination after another of tho logistcr under the control of the actuator, gearing from the actuator to theregistcr for driving the letter in a direction to perform one character of arithmetical operation. hack gearing adapted to connect the actuator to the register for driving the latter in the other direction to perform an arithmetical operation of another character, means for shifting and locking the-backgcaring mechanism to render the same operatire or inoperative, a spring tending to throw the bark-gearing mechanism to opera tire position, and a latch mechanism auto nmtically set by the movement of the car'- ringe preliminar to the computing operation, and automatically released to permit the spring to shift the hack-gearing mechirnism at the conclusion operation.

I FRANK LEWIS MORGAN; Witnesses: a

E. BALDWIN, R. A; Honrrvmrr.

c combinas of the computing 5s 

